Slug casting machine



Aug. 28, 1934 E. MORRISON ET AL SLUG CAST ING MACHINE 5 Sheets-Shet 2 Filed Sept. 16, 1933 I I t! 1934- L. E. MORRISON ET AL 1,971,424

SLUG CASTING MACH INE Filed Sept. 16, 1933 5 Sheets-Sheet 5 INVENTOR 5.

BY 7.2. fm

Aug; 28, 1934. L. E. MORRISON El AL SLUG CASTING MACHINE Filed Sept. 16, 1933 5 Sheets-Sheet 4 /1v VENTORS;

BY M Wm, M27. 0 NEYS.

A 1934-v L. E. MORRISON ET AL 1,971,424

SL UG CASTING MACHINE Filed Sept. 16, 1933 5 Sheets-Sheet 5 I 2 EMS Quad RLJ.

V4 INVENTORS.

BY C, TM

Q A TTORNE VJ.

.and the matrices and spacebands thereafter Patented Aug. 28, 1934 UNITED STATES PATENT OFFICE SLUG CASTING MACHINE Luther E. Morrison, New York, N. Y., and Frank C. Frolander, Elizabeth, ,N. J .,,assignors to Mergenthaler Linotype Company, a corporation of New York Application September 16, 1933, Serial No. 689,710

34 Claims.

separated and returned by a distributing mechanism to the magazines from which they started.

In these machines, when the composed line is presented to the mold, it is positioned between a pair of clamping jaws which have previously been set to receive it, and while so positioned, the line is justified by the expansion of the spacebands which are driven up through the line by a socalled justification bar operated prior to the casting operation. Ordinarily, the right-hand jaw is relatively fixed (having only a limited movement to operate the customary pump stop), whereas the left-hand jaw is adjustable to different positions to accord with the length of the lTlOldSIOt or with the length of the composed line in its justified condition. In casting under such conditions (which are the most common conditions), it is obvious that the number of matrices and spacebands composed must be sufficient to fill out the line completely (except of course for the limited space allowed for justification), and hence when it is desired to cast slugs with blank spaces at the ends for indenting or centering, it is necessary to employ blanks or quads for that purpose, involving considerable annoyance and delay.

It is now common practice to equip the machines with quadding and centering devices which adapt them to handle not only lines of full length as ordinarily, butin addition lines of less than full length (regardless of their actual length), so that the latter lines may be composed without blanks or quads and merely with the matrices necessary for the printed matter. While various schemes of this sort have been proposed, the device disclosed in the .co-pending application of Frank C. Frolander, Serial No. 658,077 filed February 23rd, 1933, offers many "improvements upon prior arrangements inthe wayof greater simplicity, better efficiency, and more extended "scope of operation, and while capable of wider application the present invention is shown and described asparticularly applied to the device disclosed in that application, to which reference may be had for a thorough understanding of the construction and operation of those parts not shown and described herein in detail. a

In the Frolander device, the left-hand jaw is adjustable manually to different set positions for casting lines of different lengths, and the extent of outward movement of the jaw or jaws from their line contacting positions to permit the line to be spread by the spacebands during justification is determined by a cam which is adjusted manually to correspond to the setting of the jaw. at

Furthermore, a single cam is utilized for this purpose, whether only one jaw is used, as in quadding, or'both jaws, as in centering.

As one feature of the present invention, the adjustment of the left-hand jaw for a line of given To length is utilized for automatically (instead of manually) determining the extent of the maximum outward or line-spread movement of the jaw or jaws during justification for that particular length of line.

As another feature of the invention, two cams (instead of one) are provided for determining the extent of the outward or line-spread movement of thejaw or jaws. These cams (which are of different eccentricity) are located on a bushing which is shiftable automaticallyto bring one or the other of the cams into operative position, according to whether the device is conditioned for quadding or for centering. The bushing is also rotatable and connections are provided'between it and the left-hand jaw, whereby the manual adjustment of the jaw rotates the bushing and turns the cam in use into position to determine the proper amount of spread for a line of the given length which the jaws are set to receive. The connections between the cam .bushing and the left-hand jaw are such that subsequent movement of the jaw into line contacting' position for quadding or centering (when the line will of course be of less than the given length) has no effect whatever on the bushing or cams,'the latterbeing free :to be automatically operated in'reducing the amount of line spread in a manner similar to that set .forth .in the Frolander application referred to. These and other features of the invention will befully set forth in the detailed description to follow.

Referring to the drawings:

Figil is a frontelevation of a portion of a 165 linotype machine equipped with the improved device; I V

Fig. '2 is a vertical section taken through the vise frame, and showing the device as viewed from the left, some of the parts being broken up the operation of the machine) and transfers the away to reveal the interior construction and arrangement;

Fig. 3 is a front elevation of a portion of the device, showing the large cam in operative position, certain parts being broken away to show the construction of the cam shifting mechanism;

Fig. e is a View similar to Fig. 3, showing the small cam in operative position;

Fig. 5 is a perspective view, showing the construction of the left-hand jaw and the cam adjusting connections associated therewith;

Fig. 6 is an enlarged perspective view of the cam shifting mechanism;

Fig. 7 is a front elevation, showing therighthand jaw as moved back to permit a two em expansion of the line during justification when that jaw is used for quadding;

Fig. 8 is a view similar to Fig. 7, showing the right and left-hand jaws moved back one em each to permit a two em expansion of the line during justification when both jaws are used for centering; and

Figs. 9 and 10 are elevations of the large cam in different initiall set positions (full lines) and different final positions (dot ed lines) under different conditions.

The matrices X and the expansible spacebands Y (see Figs. 7 and 8) are composed in line in the assembler A under the restraining influence of a line resistantinot shown) which can be set for lines of different length, all in the usual way. After the line has been composed, the assembler i's'raised to position the line between the fingers of the line delivery carriage B, which thereupon moves to the left (and in doing so inaugurates composed line through the intermediate channel B into. the vertically movable transporter or first elevator C slidably. mounted in the vise frame Upon receiving the line, the first ele-.

vator immediately descends to position. it between slug casting operation, the line, prior to casting,

thus modified, and vas hereinafter noted, thetwo the left-hand jaw E and the right-hand jaw F and in front of the slotted mold G, which latter then advances from the rear and into contact with the line and the two clamping jaws for the being alined and justified in the usual way when the machine is being operated under the usual conditions. After the slug has been cast, the mold is carried from its horizontal casting position (as shown in Fig. l), to a vertical ejecting position by a three-quarter rotation of the mold disc G the first elevator in the meantime being raised to deliver the composed line to the matrix and spaceband distributing devices and finally coming to rest in its original or line receiving position, as shown in Fig. 1.

, As already stated, the invention disclosed in the co-pending application Serial No. 658,077 provides adevice whereby the line clamping jaws may be operated automatically to cooperate with lines of less than full length so as to cast slugs with blank spaces at either end, as for quadding, or at both ends, as for centering. It should be stated peri haps that each of the jaws E and F is made long enough, when used alone for quadding, to close that-part of the mold slot left exposed by a short composed line, or in the absence or a composed line, to close the moldslot completely. Except as jaws are substantially the same as those employed in the vcommercial machines and they are mounted for moveinlntin the vise frame D in thev customary manner, being carried by supporting blocks E and F slidable in suitable guideways formed in the vise frame D.

The two jaws E and F are movable toward and from each other by a periodically operated part in the form of a vertically movable rod H which may be connected at its upper end to the respective jaws through the medium of two similar but oppositely disposed bell-crank levers E and F pivoted at E and F to the vise frame D, the longer arms of said levers being connected by short links E and F to the jaw supports E and F respectively, and the shorter arms or" said levers being arranged for connection to the rod H. According to this arrangement, when the rod H is moved downwardly from its uppermost position (which is its normal position of rest, as shown in Fig. 1), it will move the two jaws equidistantly toward each other (assuming both to be connected to the rod) until they contact with the opposite ends of a composed line which has previously been positioned between them, and when the rod is moved upwardly for restoration to its position of rest, it will in like manner move the jaws equidistantly away from each other to return them to their original positions of maximum separation. Since the composed lines positioned between the jaws may vary in length, the actual extent of movement of the rod H will of course vary accordingly, and hence provision is made for such varied movement of the rod in its actuating connections as will presently appear.

In providing for connection and disconnection of the rod H with and from the jaws E and F, the rod carries at its upper end a grooved collar N mounted for rotation only and seginentally formed for engagement with diametrically opposed pins N (only one being shown, see Fig. l) protruding inwardly from the extremities of the horizontal arms of the actuating levers E and F for the jaws E and F, respectively. When both jaws are to be connectedto the rod H for centering, the collar is turned to the position which brings both of its segments into engagement with tl e pins N of the jaw actuating levers E and F When both jaws are to be disconnected from the rod H for regular machine operation, the collar is turned to locate the segments out of engagement with the pins N. In connecting the rod H to either of the jaws independently, the collar is moved to intermediate positions, the appropriate brought into engagement with the desired pin N say the pin N shown in Fig. l of the lever E when selecting the left-hand jaw.

While the collar N could be turned directly by hand, a special control device is employed for setting the collar instantly in the required position. This device is shown in the form of a manually operable bar 0 mounted to slide in a horizontal guide 0 of the vice frame D and disposed at right angles to the rod H. are provided between the bar 0 and the rotatable collar N and a detailed description thereof may be found in co-pending application Serial No. 658,- 077 above referred to.

The setting of the bar 0 is effected by means of a horizontally disposed hand lever 0 pivoted at its rear end at O to a bracket extending rearwardly from the guide 0 on the vise frame and loosely pivoted about midway of its length, as at O to the bar 0 (see Fig. 6). operator, the bar 0 is provided with a pointer O which cooperates with a scale on the vise frame bearing the designations REGflmeaning regular machine operation, R, meaning right jaw quadding, C, meaning centering, and L,

segment being Suitable connections As a guide to the J in the downwardly moved or line clamping position of the rod. v

Referring particularly to Figs. 2 and 3, it will be noted that at its lower end the rod H is provided with a fixed collar T which contains an expansion spring T encircling the rod H and pressing. upwardly on the lower, 611d,'0f the sleeve '1. This lifting tendency of the spring T however, in the downwardly moved position of the rod H, is resisted and overcome by a rotary cam (in the present instance either of two cams V or V which maybe at the time in operative position) rotatably mounted on the sleeve at its upper end and arranged in position to engage a roller h arranged on the collar H fixed to the rod. When the cam in operative position is set with its high point in contact with the roller h, it willby reacting thereagainst and over the opposition of the spring T hold the sleeve T in contact with the second collar T at the lower end of the rod. Under such a setting of the earn, as will now be' evident,- there can be no relative movement between the rod and the sleeve, and the two parts function as if they were rigidly united, which is the condition that should exist when casting from lines without spacebands. On the other hand, when the cam is set, say to bring. its. lowest point into contact with the roller h, then the sleeve T, in the downwardly moved position of the rod 1-1 will be raised by the springT out of engagement with the collar T and the clearance thus provided will determine the amount of relative movement which can take place between the rodand sleeve after the locking of the latter by the toggle member J in the manner before described. This is a condition which should exist when it is desired to permit of the maximum spread of a composed line during justification, which ordinarily is three ems. When itis desired to provide for a less spread of a composed line, the cam is set in an intermediate position, that is to say in a position intermediate its lowest and highest points.

The upward movement of the rod 1-! to spread jaws for expansion of the line is effected by mechanism not herein shown (but fully shown and described in the co-pending application), this mechanism being operated by a cam arranged on the main drive shaft of the machine and acting through the lever H which actuates the rod H. The cam just referred to comes into operation after the sleeve T has been locked in its downward position bythe toggle member J and acts against the opposition of the spring H to rock the lever H and move the rod H upwardly with reference to the sleeve T until the rod collar T banks against the lower end of the sleeve, the extent of such relative movement of the rod being, as previously stated, determined by the set ting of the cam which is in operative position. It is this upward limited movement of the rod H which moves the line clamping jawsoutwardly from their line contacting position and thus determines the, final quadding or centering position of the jaws when a composed line is to be spread or justiiied by the expansion of the contained spacebands. The arrangement is such that the cam on the main drive shaft of the machine which eifects the spreading of the jaws for justification is rotated beyond its operative position prior to casting and, hence, if for any rea son the linchas not been fully expanded during justification, the spring H will operate to pull the rod H downwardly until the jaws are moved into contact with the line, and through safety means not forming a part of the present invention (but shown and described in the co-pending application), this downward movement of the rod H operates to prevent the machine from casting.

In the commercial machines, the slug casting operation is controlled by a pivoted lever L (see Fig. l) mounted on the machine frame and which actuates a pump stop. The pump stop normally stands in position to prevent casting, and the lever must be moved to the right, as viewed in Fig. l, in order to release the pump. Ordinarily, this pump releasing movement of the lever L is effected during the justification of the line by a slight yielding to the right of the right-hand jaw F which engages directly with the lever, but since this jaw when used for quadding or centering must be moved away from instead of toward the lever, means are provided for operating the lever by the leftward movement of the jaw to quadding or centering position, such movement of the jaw being transmitted through the composed line to a train of connections leading to the pump stop lever.

The connections referred to are not shown herein (being fully disclosed in the co-pending application), but are operated through a vertically arran ed pivoted s ction L carried by the left-hand jaw E and projecting inwardly beyond the matrix engaging face of the jaw,the section L being provided with a projection L which, during movement of the section toward the left (see Fig. 5), effects a camming action on a parallel motion bar (not shown), the motion of which is transmitted through the remaining connections to operate the pump stop lever L. Hence, in the event that the line is not tightly clamped between the jaws E and F, the section L will not be moved to release the pump stop and the machine will fail to cast.

Another contingency must also be cared for: When the jaws are to be spread to allow a certain predetermined expansion of the line, and the spacebands contained therein are insufiicient to effect the proper spread, the jaws after being moved outwardly to allow for the expansion, will, after justification, move inwardly into contact with the line, and a line of less than the desired length will be cast. To prevent this, a

parallel motion bar R (Fig. l) is mounted on the 1' sleeve T by a pair of pivoted connecting links H and R and cooperates with an upright lever B which controls the operation of the pump stop lever L in the required manner, all as fully set forth in the Frolander application.

The parts and their operation as thus lardescribed are the same as those found in the commercial machinesorthe patent to- 0. Morgenthaler No. 436,532, and the Frolander application, Serial No. 658,077, and while some of the parts and their operation have been described herein as an introduction to the present invention, a more complete descrip tion may be had by reference to said application.

As already stated, in the Frolander application, a single cam, adapted to be adjusted manually in changing from one measure to another, is provided to determine the maximum extent of line spread during justification for a given meas ure, and this one cam is utilized whether only one jaw is to be used, as when quadding, or both jaws are used, as when centering. Of course, with this arrangement it is necessary when centering;

repeatedly referred to,

meaning left jawquadding. These designations indicate the four positions of the hand lever, and suitable means, such as a detent, may be employed to maintain the lever in any of the four set positions. On its underside, the hand lever O is formed with a raised boss or cam 0 which forms a part of the present invention and will be further described in connection therewith at a later point.

In the operation of the machine, when the rod H occupies its uppermost or normal position of rest, the connection between its collar N and the bar 0 is established so that, by manipulation of the hand lever 0 the machine may be conditioned for quadding, centering or regular operation. However, during the operation of the machine, when the bar H is moved downwardly, this connection is broken, and in order to main tain the setting of the parts, locking means are, provided, all as fully set forth in the aforesaid co-pending application.

The rod H is slidable in suitable bearings H and H of the fixed vise frame D, being provided about midway of its length with a collar H carrying an adjusting screw (not shown) which banks against the underside of the bearing H when the rod is in its uppermost or normal position of rest. At its lower end, the rod H is connected by a link H to the forward end of a lever H having a hub portion H journalled on a pivot rod H carried by a bracket (not shown) secured to the vise frame D (see Fig. 1). Fixed to and depending from the hub portion H is a barrel or cylinder H containing an expansion I spring H pressing upwardly against a lug (not shown) projecting forwardly from a hub portion H of a second lever H also journalled on the pivot rod H The lifting tendency of the spring H is resisted and overcome by the engagement of a stop lug on the hub portion H on the second lever ID with a stop lug formed on the hub portion H of the first lever H the effect of this arrangement being to cause the two levers to move in unison until the first lever H is arrested by a downward movement of the rod carrying sleeve H The operating connections for the lever H are not shown herein, being dealt with in detail in the co-pending application Serial No. 658,077.

For present purposes, it will suffice to say that a cam is provided on the main drive shaft of the machine, and the rotation of this cam (which is always in a clockwise direction and which makes one complete rotation at each cycle of operation of the machine) is imparted to the rod H through a train of connections leading from the cam to the lever H and from there on through the train of connections previously described whereby the rod H is first moved downwardly to effect the inward or closing movement of the jaws E and F, and then upwardly to effect the outward or separating movement of the jaws. Since the downward movement of the rod II will vary according to the length of the composed line positioned between the jaws, its actuating connections must be arranged to yield as the rotation of the cam on the main drive shaft continues, and this yielding is provided by the lost motion which takes place between the two levers H and H, the latter acting on the former through the expansion spring H which, of course, will be compressed to absorb the lost motion. By the use of this lost motion arrangement, the lever H may be operated positively by the cam on the main drive shaft and permitted to partake of a full rocking movement regardless of the extent of movement of the rod H.

In order to lock the rod H in its downwardly moved position, there is provided a toggle member J (see Fig. 2) enclosed within a box or housing D which carries the bearing H before alluded to. This toggle member J operates a clamp or grip element J arranged to contact with a sleeve T carried by the rod H and which, for purposes of the present description, may be assumed to be integral with the rod. Associated with the toggle is an actuating link J provided at its upper end with an adjusting screw J arranged to bear upon the toggle joint. At its lower end, the link J is connected by a turn-buckle link J to the forward laterally bent arm J of the lever H before referred to. As will be noted in Fig. 2, the link J is slotted as at J so as to straddle the toggle joint, being encircled within the box D by a small compression spring (not shown) which normally presses upwardly on the toggle joint to maintain the grip element J in inactive position.

It will now be seen that the toggle member J is operated by reason of the lost motion which takes place between the two levers H and H it being remembered that the former lever is the one connected to the rod H. In other words, after the lever H is arrested in its movement by the downward movement of the rod H (due of course to the contact of the jaws with the opposite ends of a composed line), the lever H continues to move to its full extent under the influence of the actuating cam on the main drive shaft of the machine, acting in the meantime to continue its drawing down of the link J The length of the link J (or what amounts to the same thing, the position of the screw J thereon) is such that, during the last portion of the movement of the lever H", the screw J is moved down within the box D and caused to actuate the toggle member J so as thereby to press the grip element J under heavy pressure against the sleeve T and lock the rod I-I securely in its downwardly moved position. It may be explained in passing that the toggle member J is so designed that its members will never pass dead center. Later, after the slug has been cast and it becomes necessary to restore the jaws to their original positions, the link J is raised in advance, so as to unlock the rod H and its sleeve T to permit the raising of the rod, the link during the raising of the rod passing through the box or housing D and the aforementioned spring acting instantly to withdraw the grip element J from engagement with the sleeve T.

Were the rod H and its sleeve T actually joined together as one (as above assumed), it is plain that there could be no spread of the composed lines after the sleeve is locked in position by the toggle member J, and in such circumstances, the jaws would be locked directly in their line contacting positions, which actually happens when the lines are composed without spacebands. However, the arrangement is such that the jaws may be moved outwardly from their line contacting positions, to a limited extent, after the locking of the sleeve T in order that a composed line may be spread to a corresponding extent under the expanding influence of the spacebands Y, provision being made for allowing the line to spread up to three ems in extent. This is accomplished, as before stated, by provision of a relative movement between the rod Hand the sleeve T after the latter has been locked by the toggle member alluded to; for controlling the amount of relative movementbetween the sleeve T and the rod H to determine the'extent of outward movement of the jaws during justification. The cams V and V are mounted on a common axis but differ in eccentricity, and the larger cam Vis utilized when centering while the smaller cam V which has "to the vise frame D (Fig. 2).

the greater eccentricity, is used when quadding.

Preferably, the cams V and V are formed integrallyon a bushing member V which is slidable axially on a sleeve V supported'by apin V projecting from the upper sleeve band T Also formed on the member V are circular flanges or collars V and V spaced apart to form I a yoke by means of which the'member may be shifted axially on the sleeve V to bring one or the other of the cams into operative position relative to the roller h (before mentioned) carried by a pin 71 projecting from-the collar H A spring detent V arranged on the flange V and adapted to seat in one or the other of a pair of grooves V formed in the sleeve V serves to maintain the member V in its shifted position.

A forwardly extending arm V (see Figs. 2 and 6) formed with an elongated slot V1, is secured to the outer end of the sleeve V and provided with a pin V projecting into an aperture formed in the flange V for the purpose of rotating the member v on the sleeve V The pin V fits loosely within the aperture, so that the member V may be shifted freely, and is made long enough to 'maintain its engagement with the flange V in either shifted position of the member V The slot V in'the arm V3 receives a pin V projecting from the end of a second arm V piv- I otally mounted on a bolt V fastened to the vise frame D. About midway of its length, the arm V is pivotally attached to the lower end of a rod V which latter is formed in two sections held together by a knurled turnbuckle V provided to lengthen or shorten the rod V and thereby effect initial working adjustment of the cams" V and V The'upper portion of the rod V is slidable in a bearing formed in thevise frame D, and is provided at a point below the bearing with, a collar V between which collar and the vise frame a coil spring V is arranged. At its,

upper extremitmthe rod V is pivotally attached to one arm V of afore-and-aft lever V pivotally mounted as at V to a bracket V secured V of the lever V is arranged to play in a horizontal slot V formed in a right angularly disposed plate V which is supported by a pair of parallel motion links V on the jaw support E The front faceof the left-hand jaw E is formed with a longitudinal recess to receive the plate V and the upper wall E of the recess is bevelled or inclined downwardly toward the left, the upper edge of the member V being correspondingly formed.

With this arrangement, when the left-hand jaw E occupies its fully retracted position or is set for a line of full measure, the spring V urges the rod V all the way down and, through the arms V and V maintains the cam V or,

The other arm V (whichever is in" operative position) with its highest point in engaging relation to "the roller h and thus holds the rod H and sleeve T against relative movement in the downwardly moved po-f sition of the rod'. On the other hand, when'the left-hand jaw E'isadjusted inwardly to any desired set position for aline of less thanfull measure, the inclined surface E camsthe plate V downwardly and with it the arm V of the lever V causing the latterto be rocked about its pivot V, and raising the rod V against the action of the spring V to rotate the member V and change the adjustment of the cam'V or V accordance with the setting of the jaw. In short, the adjustment of the left-hand'jaw E fora line of any given measure automatically effects a cor--' responding adjustment of the operative cam V or V to determine the amountof relative move ment between the rod H and the sleeve '1 or the full extent of the outward or line spread move ment of the jaw or jaws during justification of that given length line. i It will be recalled that the rod H is'connectd by the lever E to the slidable left-hand jaw-supporting block E so that when'the jaw E is moved from its particular set position into line contactingposition, it is carried by the supporting block E there being no relative movement between them.- When the supporting block E is thus moved, it also carries with it the plate V but since the slot V is horizontally disposed, the relative movement between the plate'V and the lever V will in no way affect the latter or alter the initial setting of the cam in use. i T

The mechanism employed for shifting the cam member V comprises a rod P (see Figs. 3, 4 and 6) slidably mounted inbearings P and P formed in'brackets P and' P respectively, 'secured to the vise frame D. The rod P is provided with a pin P which projects through a slot P formed in the lower side of the bearing P and is arranged to enter betweenthe flanges V and V on the member V when the rod H occupies its uppermost position." The slot P runs parallel with the member V so that movement of the rod P from left to right or vice versa, as viewed in the drawings, will effeet a corresponding movement of the 'member V on the sleeve V Adjacent the bearing P the rod- P is formed with an enlarged portion B" having a flat face P 'on which there is located a roller P mounted on a pin P The roller P isadapted to engage in a diagonally'disposed groove or channel P formed in a block P lsecured, as by a screw P to the lower end of a plunger P which latter is arrangedin a fixed vertically disposed bearing or sleeve-P formed in the bracket P The upper end of the plunger P projects beyond the top edge of the bearing P as at P and is normallyheld in its up permost position by a tension spring P which is connected at one end by a pinP to the lower end of the plunger P and at its other end by i a conveniently located thumb-screw P to'the fixed bearing P Pivotally 'mounted at]; to an extended portion P2 of the bracket P is a lever P, the free end P of which engages with upper end of the plunger P On its upper edge, the lever P is formed with a pair of raised bosses P and P between which there is arranged a roller P mounted on a pin P, the roller being adapted to be engaged by the pre-" viously mentioned boss 0 on the control lever 0 when the latter is moved into position to condition the machine for centering. l

"cam member through the lever V The thumb-screw P is formed with a tapered tip adapted to engage in a small recess or depression P formed in the plunger P If at any time when the machine is to be conditioned for quadding rather than centering and a reduced line spread is desired, the thumb-screw P may be set up into engagement with the recess P Thereafter, when the lever O is moved to the right or left to condition the machine for quadding, carrying the boss 0 out of engagement with the roller P on the lever P the plunger nevertheless will be held in its depressed condition as shown in Fig. 6 and the large cam V will be maintained in operative position to act upon the roller h and control the spread of the line.

Under ordinary circumstances, however, the thumb-screw P is locked out of engagement with the recess F by a lock-nut P, so that when the control lever O is set for either right or left-hand quadding, the spring P exerts itself to maintain the plunger P in its upper position, in which condition of the parts (see Fig. 4) the small cam V is in operative position to act upon the roller h and-control the line spread. When the lever O is moved to the position shown in Fig. 6, for centering, the boss 0 engages the roller P and effects a carnrning action thereon to rock the lever P about ts pivot P and depress the plunger P against clamping jaws into contact with the composed line, asin the Frolander application, and it is for this reason that the rod V instead of being connected directly to the cam member V is secured to the lever V which is connected to the When the member V is carried downwardly with the rod H, the lever V due to its pin and slot connection with the lever V (which latter, of course, is held against movement), will also move downwardly and at the same time rock about the pin V turning the member V (and therefore the cams V and V mounted thereon) clockwise (as viewed in Fig. 6) or in a direction to bring higher portions of the active cam into contact with the roller h and thereby reduce the space between the rod collar T and the lower end of the sleeve T.

The extent of turning of the cam member V will, of course, depend upon the extent of the downward movement of the sleeve T. Thus, if the sleeve should be carried to its lowermost position, as when there is no line between the clamping jaws, the member V will be turned to bring the highest portion of the active cam into contact with the roller h and in such case no clearance space will remain between the sleeve and the collar T On the other hand, if the sleeve should be carried only part way down, as when there is a line between the clamping jaws,

the turning of the member V will be less but illustrated the effect of the automatic initial setting of the active cam (which happens to be the cam V) by the adjustment of the left-hand jaw into set position, and also the automatic change in the adjustment of the cam which comes from the downward movement of the rod H and sleeve T in moving the jaw or jaws into line contacting position. Referring first to Fig. 9, the cam and its associated parts are shown by the full lines in their normal position of rest when the lefthand jaw occupies its full line position. By the dotted lines, there is indicated the manner in which the roller It first comes into contact with the earn as the rod and sleeve begin their downward movement, and then the cam rotated to bring a higher point into engagement with the roller h as the rod and sleeve continue their.

downward movement, it being understood that such rotation of the cam is brought about by the rocking and sliding movement of the lever V about the relatively fixed pin V The showing in Fig. 10 is substantially the same as that of Fig. 9, except that by the full lines the cam V is shown as initially presenting a higher point for engagement with the roller H due to the manual adjustment of the left-hand jaw into a desired set position for a line of less than full length, whereby initially the spread of the line is reduced to correspond, and by the dotted lines there is shown the rotation of the cam due to the downward movement of the rod and sleeve, whereby a still further reduction of the line spread will be efiected. Comparing Figs. 9 and 16, it will be noted that the latter shows a greater rotation of the cam than the former; This is the result when a short line is presented to the mold and the rod and sleeve partake of a greater downward movement in bringing the jaw or jaws into contact with the line. In this connection, it may be stated that the operation is the same regardless of which cam is in use, although naturally the extent of movement will be different in the two cases. Thus, as will be clear from Figs. 7 and 8, when the small cam V is used for quadding (Fig. 7) the line spread movement of the rod H, being confined to one jaw only, will be twice as great for a given line spread as when the large cam V is used for centering (Fig. 8), at which time the rod H is connected to both jaws.

In the accompanying drawings, the invention has been shown in preferred form and by way of example, and as applied to the machine of the class stated, but obviously many modifications and alterations may be made therein and in its mode of operation without departing from the spirit of the invention. It should, therefore, be understood that the invention is not limited to any specific form or embodiment, except insofar as such limitations are specified in the appended claims.

Having thus described our invention, what we claim is as follows:

1. In a slug casting machine, the combination of a pair of line clamping jaws, one of said jaws being adjustable toward the other to accommodate lines of different lengths, means for moving one of the jaws inwardly from its line receiving position into contact with a composed line, said jaw being thereafter movable outwardly a lim ited distance from its line contacting position, and means controlled by the set position of the adjustable jaw for determining the extent of such outward movement for lines of a given length.

2. In a slug casting machine, the combination mamas of a pair of line clamping jaws, one of said jaws being adjustable toward the other to accommodate lines of different lengths, means formoving one of the jaws inwardly from its line receiving position into contact with a composed line, said jaw being thereafter movable outwardly a limited distance from its line contacting position, and automatic means controlled by the adjustment of said adjustable jaw for determining the extent of such outward movement for lines of a given length. V

. 3. A combination as set forth in claim 1, in-v eluding further means operable automatically by the inward movement of the movable jaw from its line receiving position into contact with the line to vary the extent of its outward movement for lines of less than the given length.

i 4. A combination as set forth in claim 1, including automatic means for progressively reducing the extent of the outward movement of the movable jaw from its line contacting position in proportion to the extent of its inward or line contacting movement.

5. Ina slug casting machine, the combination of a pair of line clamping jaws, one of said jaws being adjustable toward the other to accommodate lines of different lengths, means for moving one of the jaws inwardly from-its line receiving position into contact with a composed line, means for thereafter moving said jaw for a limited distance outwardly from its line contacting position to permit justification of the line, and means controlled by the adjustment of theadjustable jaw as well as by the inward movement of the movable jaw for respectively determining and varying the extent of the outward movement of the movable jaw from its line contacting position.

6. In a slug casting machine, the combination of a pair of line clamping jaws, one of said jaws.

being adjustable to different set positions for lines of difderent lengths and being movable from its, set position into line contacting position, means for thereafter moving said jaw for a limited distance outwardly from its line contacting position, and means controlled by the adjustment of the jaw into its set position as well as by its movement into line contacting position for respectively determining and varying the extent of the outward movement of the jaw from its line contacting position.

7,, Ina slug casting machine, the combination with a left-hand line clamping jaw and an opposed right-hand line clamping jaw, the lefthand jaw being adjustable toward the righthand jaw to diiierent set positions to accommodate lines oi different lengths, of means for moving the left-hand jaw from its set position into contact with a composed line, said jaw being thereafter movable outwardly a limited distance from its line contacting position, andmeans controlled by the set position of the left-hand jaw for determining the extent of its outward movement.

8i Ina slug casting machine, the combination with a left-hand line clamping jaw and an opposed right-hand line clamping jaw, the left hand jaw being adjustable toward the'right-hand jaw to dii'lerent set positions to accommodate lines of different lengths, of means for moving the left-hand jaw from its set position into contact with a composed line, said jaw being thereafter movable outwardly a limiteddistance from its line contacting position, means controlled by the set position of the left-hand jaw for determining the extent of itsoutward movement, and,

further means controlled by the extent ofins. ward movement of the jaw from its set position into contact with the line to vary the extent of its outward movement.

9. In a slug casting machine, the, combination with a left-hand line clamping jaw and an opposed right-hand line clamping jaw, the left-hand jaw being adjustable toward the right-hand jaw to diiierent set positions to accommodate lines of diilerent lengths, of means for moving one of the jaws inwardly from its, line receiving position into contact with a composed line, said jaw being thereafter movable outwardly a limited distance from its line contacting position, and. automatic means controlled by the, adjustment, of the left-hand jaw for determining the extent of such outward movement for lines of a givenv length,

10. In a slug casting machine, the combination with a left-hand line clamping jaw and an opposed right-hand line clamping jaw, the left-hand jaw being adjustable toward the right-hand law to different set positions to accommodate lines of different lengths, of means for moving one of the jaws from its line receiving position into. contact with a composed line, said jaw being thereafter movable outwardly a limited distance from its line contacting position, automatic, means controlled by the adjustment of the lefthand jaw for determining the extent of such outward movement for lines of a given length, and further automatic means controlled by the inward movement of the movable jaw from-its line receiving position into contact with the line to vary the extent of such outward movement, for lines of less than the given length.

11. In a slug casting machine, the combination it with a left hand line clamping jaw and an opposed right-hand line clamping jaw, the lefthand jaw being adjustable toward the righthand jaw to. diiierent set positions to accomodate lines of different lengths, means for moving the right-hand jaw inwardly from its line receiving position into contact with a composed line, said right-hand jaw thereafter being movable outwardly for a limited distance from its line contacting position, and means controlled by the set position of the left-hand jaw for determining the extent of such outward movement of therighthand jaw.

12. In a slug casting machine, the combination with a left-hand line clamping jaw and an opposed right-hand line clamping jaw, the left-hand jaw being adjustable toward the right-hand jaw to different set positions to accommodate lines of 131), different lengths, means for moving the righthand jaw inwardly from its line receiving position into contact with a composed line, said righthand jaw thereafter being movable outwardly for a limited distance from its line contacting posi tion, means controlled by the set position of the left-hand jaw for determining the extent of' such outward movement of the right-hand jaw, and

further means controlled by the extent of the inward movement of the right-hand jaw into line 14g contacting position to vary the extent of its out ward movement from that position.

13. In a slug casting machine, the combination with a left-hand line clamping jaw and an opposed right-hand line clamping jaw, the lefti l-5 hand'jaw being adjustable'toward the right-hand jaw to. different set positions to. accommodate lines of different lengths, meanssfor moving both jaws inwardly from their linereceiving position into contact with a composedline, saidjawsthere- 15 0;

after being movable outwardly for a limited distance from their line receiving position, and means controlled by the set position of the left-hand jaw for determining the extent of such outward movement of the two jaws.

14. In a slug casting machine, the combination with a left-hand line clamping jaw and an op posed right-hand line clamping jaw, the left-hand jaw being adjustable toward the right-hand jaw to different set positions to accommodate lines of different lengths, means for moving both jaws inwardly from their line receiving position into contact with a composed line, said jaws thereafter being movable outwardly for a limited distance from their line receiving position, means con-- trolled by the set position of the left-hand jaw for determining the extent of such outward movement of the two jaws, and further means controlled by the extent of the inward movement of the two jaws into line contacting position to vary the extent of their outward movement from that position.

15. A combination according to claim 1, wherein the inward movement of the movable jaw or jaws is a quadding or centering movement and wherein the outward movement of said movable jaw or jaws is from quadding or centering position.

16. In a slug casting machine, the combination of a. pair of line'clamping jaws, one of said jaws being adjustable toward the other to different set positions to accommodate lines of different measure, means for moving'one jaw inwardly into contact with a composed line, means for thereafter moving said jaw outwardly for a limited distance from its line contacting position, an adjustable cam cooperating with the latter means to determine the extent of such outward movement, and operative connections between the adjustable cam and the adjustable jaw, whereby the latter determines the extent of the outward movement of the movable jaw.

17. A combination as set forth in claim 16, including means controlled by the inward movement of the movable jaw into line contacting position for effecting a further adjustment of the cam to reduce the extent of the outward movement of said jaw as the length of the composed line decreases from a given measure to a smaller measure.

18. In a slug casting machine, the combination of a pair of line clamping jaws, means for moving one of said jaws inwardly toward the other for quadding or for moving both jaws toward each other for centering, means for thereafter moving said jaws outwardly for a limited distance from line contacting position, and means for determining the extent of such outward movement of the jaws, said means including a pair of cam-s, one for centering and the other for quadding, movable into operative position as required.

19. In a slug casting machine, the combination of a pair of line clamping jaws, means for moving one of said jaws inwardly toward the other for quadding or for moving both jaws toward each other for centering, means for thereafter moving and jaws outwardly for a limited distance from li e contacting position, means operable to condition the machi -e for-quadding or for centering, and meami for determining the extent or such outwarcl'movement of the jaws, said including a pair of cams, one for centering and the other for quadding, and connections from the machine conditioning means for automatically selecting one cam or the other for use.

20. In a slug casting machine, the combina tion of a pair of line clamping jaws, means for moving one of said jaws inwardly toward the other for quadding or centering, means for thereafter moving said jaw outwardly for a limited distance, m ans for determining the extent of such outward movement of the jaw when quadding, and other means for determining the extent of such outward movement of the jaw when centering.

21. A combination according to claim 20, including means for automaticaily selecting one determining means or the other according as the machine is conditioned for quadding or centerin.

22. A combination as in claim 19, wherein the machine conditioning means includes a hand lever movable to diii'erent positions for quadding or centering, and wherein the cam selecting connections include means operated by said hand lever for shifting the cams to bring one or the other into operative position.

23. A combination as in claim 19, wherein, the machine conditioning means includes a hand lever movable to different positions for quadding or centering, and wherein the cam selecting connections include means operated by said hand lever for shifting the cams to bring one or the other into operative position, characterized by the fact that the cams are mounted on a shiftable bushing by which one or the other is brought into operative position, and that the shifting of the bushing is eiiected by a roller arranged on a shifting member associated with the bushing and engaging a cam surface carried by a plunger controlled in its actuation by the hand lever which conditions the machine for quadding or centering.

24. In a slug casting machine equipped with left-hand and right-hand line clamping jaws, a quadding and centering device, and means to spread the jaws to permit expansion of the line during justification, the combination of means controlled by the setting of the left-hand jaw for determining the extent of spread of the jaws, said means including a rotatable cam operative to control the jaw spreading means, a vertically movable member arranged in a recess formed in the left-hand jaw and having an inclined surface bearing against a correspondingly inclined surface presented by said recess, the member being supported by two parallel motion links to permit it to move vertically as the jaw is adjusted relatively thereto to diiferent set positions, and connections between said member and rotatable cam whereby the vertical movement of the member will effect the rotation of the cam.

25. A combination as in claim 24, wherein the member associated with the jaw is formed with a horizontal longitudinal slot to permit a free relative movement between it and its connections with the cam, whereby the member may move with the jaw without affecting the cam.

26. In a slug casting machine equipped with left-hand and right-hand line clamping jaws, a uadding and centering device, and means to spread the jaws to permit expansion of the line during justification, the combination of a pair of rotary cams for controlling the extent of spread of the jaws, and means for bringing one or the other of the cams into operative position according as the machine is conditioned for quadding or centering.

27. In a slug casting machine, the combination of a pair of line clamping jaws, a vertically upward movement after locking, and means for rendering one of said cams active and the other inactive as required. 7

23. In a slug casting machine, the combination of a pair of line clamping jaws, a vertically movable rod connected to at least one of said jaws, means for moving the rod'downwardly to effect a closing movement of the jaws and then upwardly to effect a separating movement of the jaws,

means for locking the rod in its downwardly moved position with capacity fora limited upward movement to permit of a corresponding separation of the jaws during justification, means independent of the line for effecting such limited upward movement of the rod, a pair of cams movable with the rod and adjustable with reference thereto to controlthe extent of its upward movement after locking, means for rendering one of said cams active and the other inactive as required, and means for adjusting the active cam in varying the upward movement of the rod.

29. In a slug casting machine, the combination of a pair of line clamping jaws, a vertically movable rod connected to at least one of said jaws, means for'moving therod downwardly to effect a closing movement of the jaws and then upwardly to effect a separating movement of the jaws, means for locking the rod in its downwardly moved position with capacity for a limited upward movement to permit of a corresponding separation of the jaws during justification, means independent of the line for efiecting such limited i upward movement of the rod, a pair of cams movable with the rod and adjustable with reference thereto to control the extent of its upward movement after locking, means for rendering one of said cams active and the other inactive as required, and means for adjusting the active cam in varying the upward movement of the rod, said means being controlled by the setting of the jaws for lines of a given measure. I

30. In a slug casting machine, the combination of a pair of line clamping jaws, a vertically movable rod connected to at least one of said jaws, means for moving the rod downwardly to effect a closing movement of the jaws and then upwardly to effect a separating movement of the jaws, means for locking the rod in its downwardly moved position with capacity for a limited upward movement to permit of a corresponding separation of the jaws during justification, means independent of the line for effecting such limited upward movement of the rod, a pair of cams movable with the rod and adjustable with reference thereto to con-- trol the extent of its upward movement after locking, means for rendering one of said cams active and the other inactive as required, and means for adjusting the active cam in varying the upward movement of the rod, said means being controlled by the setting of the jaws for lines of a given measure and also by the closing of the jaws during quadding or centering for contact with lines of less than said given measure.

31. In a slug casting machine, the combination of a pair of line clamping jaws relatively adjustable to accommodate lines of different measure, means for closing the jaws upon a composed line and thereafter separating them for a limited dis- V tance to permit justification, and 'means controlled by the initially adjusted position of the jaws to determine the extent of their separation for lines of a given measure.

32. In a slug casting machine, the combination of a pair of line clamping jaws relatively adjustable to accommodate lines of different measure, means for closing the jaws upon a composed line and thereafter separating them for a limited distance to permit justification, means controlled by the initially adjusted position of the jaws to determine the extent of their separation for lines of a given measure, and further means controlled by the closingin movement of the jaws to reduce the extent of their separation for lines of less than the given measure.

33. In a slug casting machine, the combination of a pair of line clamping jaws, means for closing the jaws upon a composed line for quadding or centering and thereafter separating the jaws 5 for a limited distance to permit justification, means for conditioning the machine for quadcling or centering, andmeans for effecting a uniform separation of the jaws under a given setting whether quadding or centering.

34. Ina slug casting machine, the combination of a pair of line clamping jaws, means for closing the jaws upon a composed line for quadding or centering and thereafter separating the jaws for a limited distance to permit justification, means 5 for conditioning the machine for quadding or centering, means for effecting a uniform separation of the jaws under a given setting whether quadding or centering, and means controlled by said conditioning means for insuring a uniform 13o separation of the jaws under a given setting whether quadding or centering.

LUTHER E. MORRISON.

FRANK o. FROLANDERV 

